IE 9 64 bit looses link to internet often. It also crashes when I use the Back Arrow to go to a previous page. I usally have top do a restart. Sometime, I even must power down and then cold start. I have MS Windows 7 (64 bit) in high end PC, with super fast hardware, W7 compatible. BIG problem is that it is nect to impossible to get onto thier complaint service to tell them what to fix. Once again, MS has ruined PC computing!